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Teltronic Conference 2005 - Beyo

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					        1st TETRA Malaysian Conference
                18th May 2005




Beyond the TETRA Technology
                  Beyond the TETRA Technology




                          Introduction

Teltronic, 2005
             Presentation overview



                  INTRODUC              TERMINA   SUMMAR
                              NETWORK
                       TION             L         Y




Teltronic, 2005
                           Introduction


           What we will offer in the presentation
              The main keys of flexibility, scalability and connectivity to
             allow choosing the best option for your TETRA network topology.
              The way to provide TETRA terminals with extra added value to
             make easier the development of advanced applications.

            What we expect to achieve
              To open your minds towards new ways to take benefit of such a
             powerful technology, also being aware of its limits and the way to
             overcome them.
              To provide the keys to you for optimal decision making in your
             present and future investments in TETRA products.
Teltronic, 2005
                    Beyond the TETRA Technology




                            The Network
                  A new world of flexibility and scalability




Teltronic, 2005
                                Beyond the TETRA Technology
                                        The Network

                  Index of contents
                       • Introduction
                       • Transport
                       • Redundancy
                       • Scalability
                       • Connectivity


Teltronic, 2005
                                   Introduction to the network (I)

            NEBULA is the TETRA infrastructure by Teltronic. It has been
            designed over a star configuration topology.




     NEBULA ACRONYMS:
     SCN: Switching Control Node
     SBS: Site Base Station



Teltronic, 2005
                              Introduction to the network (II)
     A flexible topology provides the customer with different alternatives to
    address the main topics of every system architecture design: transport,
    redundancy, scalability and connectivity.
                                                                     TRANSPORT:
                                                                     Customers could already have an existing
                        SBS                                          transport network and they would like to reuse
                                                                     it with the new TETRA system.
                              Link
                                                               SBS
                                                                     REDUNDANCY:
                  SCN
                                                                     The only way to guarantee the lowest service
                                                                     gap in case of failure of any element in the
                             IP                                      system.
                          network                        SBS
                                                                     SCALABILITY:
                                                                     Early and low-cost mechanisms to upgrade
                                                                     and expand the system are highly valuable.
                        Transport           Redundancy

  Connectivity
                                                                     CONNECTIVITY:
                              Scalability
                                                                     The system oftenly needs to be connected to
Teltronic, 2005                                                      other external systems and/or applications.
                                Beyond the TETRA Technology
                                        The Network

                  Index of contents
                       • Introduction
                       • Transport
                       • Redundancy
                       • Scalability
                       • Connectivity


Teltronic, 2005
                               Transport (I)

          Synchronous links:

                          V.35 link: Standard link in transport environments. Access
                          to PDH, SDH, microwaves.
                                   Bandwidth: 64 Kbps up to 2 Mbps.
                  G.703/G.704: [E1 or T1]: Standard link in transport
                  environments. Access to PDH, SDH, microwaves. Circuit
                  connection to other standardised systems.
                  Bandwidth: 64 Kbps per slot, frame structure up to 2 Mbps.
                       BRI - PRI [ISDN]: Access through public networks.
                                Bandwidth BRI (Basic Rate Interface): 128 Kbps.
                                Bandwidth PRI (Primary Rate Interface): 2 Mbps.


Teltronic, 2005
                           Transport (II)

          Asynchronous links - Layer 2:

                  LAN links (Layer 2 - Ethernet links):
                          LAN (Corporate local area networks) :
                                 - Always through switches (instead HUB).
                                 - Ethernet rings (Rapid Spanning tree, 802.1w).
                                 Bandwidth: 10 Mbps, 100 Mbps, 1 Gbps.

                          WiFi / WiMAX:
                                   - 2.4 GHz, 5.4 GHz (with or without license)
                                   Bandwidth: From 1Mbps up to over 54Mbps.

                          Optical Fiber (using optical backbones):
                                   - Solutions like HyperRing.
                                   Bandwidth: 100 Mbps, 1Gbps...

Teltronic, 2005
                                       Transport (III)

          Asynchronous links - Layer 2:
                                                              SBS
                                                                                                       SBS
                                                                                         WiFi
                                                                                      Connection
           SCN
                       Standard Office Local Area
                       Network




                                 Ethernet Switches


                                                                                                             SBS

                                                                                         Ethernet Switch
                                                                    Optical Fiber


          LAYER2 SYSTEM ACCESS:
                                                          Fiber      70 Km
                                                                                     Fiber
             : Ethernet connections                      Access                     Access
             : Wireless connections
             : Optical Fiber connections
Teltronic, 2005
                                Transport (IV)

          Asynchronous Links - Layer 3:

                  IRB (Integrated Routing and Bridging): Point-to-point link between two
                  routers through WAN connection with FR (Frame Relay).
                  The use of DLCI (Data Link Connection Identifier) in FR allows dividing
                  the bandwidth for the TETRA system and corporate communications.
                  VPN/MPLS (Multi Protocol Labelling Switching): Using layer 2 labels it is
                  possible to manage the QoS of the layer 3 packets.
                  xDSL / NetLAN: Access points distributed around the world.
                  Depending of the bandwidth required is recommended to use NetLAN
                  connections. These are not introducing the payload packet through the
                  Internet world.



Teltronic, 2005
                               Beyond the TETRA Technology
                                        The Network

                  Index of contents
                       • Introduction
                       • Transport
                       • Redundancy
                       • Scalability
                       • Connectivity



Teltronic, 2005
                                  Redundancy (I)

          Redundancy is a strong requirement for any professional
         communication network:


                            A TETRA SYSTEM MUST BE REDUNDANT on:
                  BSR: Base Stations.
                  CNC: Switching Control Node Processor (redundant by two main units).
                  LINKS: Must be redundant in case of a fault in transport system.
                  PATHS: Different paths must be considered to connect the SCN from the SBS.
                  Physical Connections: Cables and hardware drivers can also fail, therefore
                  these must be duplicated.


Teltronic, 2005
                                Redundancy (II)

          Redundancy strategies must be applied to any critical part
         within the system:

                  Synchronous
                     World
                                  SBS1
                                                BSR

                                                                LAN
                  Asynchronous             SNI
                      World            G.703/G.704                                    SNI S/T
                                                            Ethernet
                                                             Switch Redundant
                                                                      Ethernet
                                   E1 Link                             Switch
                                                               Redundant
                                                        WAN                    ISDN        BRI Link
                                                                 E1 Link
                                      SNI
                                  G.703/G.704
                           CNC                               Redundant            SNI S/T
                                         LAN            Physical Connections


                                             Ethernet     Redundant
                                              Switch       Ethernet
                                                            Switch    SCN (Switching Control Node)

Teltronic, 2005
                                Beyond the TETRA Technology
                                        The Network

                  Index of contents
                       • Introduction
                       • Transport
                       • Redundancy
                       • Scalability
                       • Connectivity


Teltronic, 2005
                           Scalability
           Systems must be designed to support upgrades with the minimum
          impact over the working network. Both software and hardware
          upgrades are expected to be supported.

            Software upgrades (Increasing functionality):
                   • Background FTP to upgrade functionality.
                   • The system must be continuously working.
                   • Secondary memory bank is required.


            Hardware upgrades (Expanding the network topology):
                   • Increasing network dimension or redundancies.
                   • Plug and Play.
                   • Hot swap connection.
Teltronic, 2005
                               Beyond the TETRA Technology
                                        The Network

                  Index of contents
                       • Introduction
                       • Transport
                       • Redundancy
                       • Scalability
                       • Connectivity



Teltronic, 2005
                              Connectivity (I)

          General connectivity concepts in NEBULA
                           N2A: (NIIA) NEBULA IP Interface Access
                                          TDP: TETRA Dispatcher Protocol

                                                              Telnet
                   Standard IP Services          TCP
                                                              FTP
                  (PDP TETRA Services)           UDP
                                                              http
                                                              smtp

                                                             REGISTER AND CALL
                                                                                     (Simplex, Duplex, Group
                                                              CONTROL               calls, Status, SDS)

          N2A     TETRA                     TDP
                                                             MONITORING
                                  TCP
                  Dispatcher                                 INCLUSION / LISTENING /
                                  UDP                        TERMINATION
                  Services
                                                             DGNA

                                            VoIP (voz)                             RTP
                                                                                    RTCP


Teltronic, 2005
                                   Connectivity (II)

           Voice communication management (Dispatching)

                        SBS NEBULA                                                      FIREWALL


                                                                               SWITCH

                                                                                                           Client SBS
                                                                  SNI
                                                                                                           Line Dispatcher 1



                           SCN NEBULA                             SNI
                                                                     SNI
                                                                                                              Client SCN
                                                              GATEWAYRDSI
                                                                 VoIP                                         Line Dispatcher 1
                                                                  GATEWAYRDSI           FIREWALL
                                                                        VoIP
                                             SWITCH

                                                              VoIP (SCN RTP / RTCP)                    Backbone
                                          XML (NMS) TDP (SCN Monitoring, Calls, PTT)
                                                                                                   Corporate Network

                                                                GATEWAYRDSI
                                   CNC                             ISDN




                        NMS Server
                        Line Dispatcher Server
                                                                                                           Client SCN
                                                                                                           Line Dispatcher n

                  PHYSICAL CONNECTION between Line Dispatcher stations and NEBULA
Teltronic, 2005
                   Beyond the TETRA Technology




                          The Terminal
                  Driving your applications to the limit




Teltronic, 2005
                                 Beyond the TETRA Technology
                                         The Terminal


                  Index of contents
                       • The role of the terminal in a system
                       • Improving the terminal capabilities
                       • Examples of customised scenarios




Teltronic, 2005
                                The role of the terminal in a system (I)

            Which are the kind of elements normally requested
           to solve a complete application?
           Multiple audio interfaces
           • Microspeaker
           • In-vehicle hands-free kit
           • 600Ω balanced interface
           • Audio recording output
                                               Extended I/O capabilities
                                               • External PTT (foot-switched) input
                                               • Event-controlled outputs
                                               • Emergency signal input
                                                                                      ?
           • Ambience listening mic input   Data transmission & control
                                            • External access to data transmission services
                                            • Remote radio unit control protocol
             Integration with other
             communication
                                            MMI customised access
             peripherals
                                            • User logging
             • GPS receiver                 • Shortcuts to user services
             • GSM transceiver              • Software customisation at application level
             • Analog radio transceiver     • Customised user front-ends
Teltronic, 2005
                          The role of the terminal in a system (II)
             Is there a way to optimise these kinds of extra
            requirements?
                            APPLICATION ELEMENTS

                                          Peripheral    Peripheral
                                                                     ?
                                                                     YES !

                                              #1            #n
             External
            peripherals         Audio
                              interface
                                                 TETRA                External
                                                                        I/O
                             Customised         radio unit
                  USER
                                MMI

                                             TETRA terminal

            …by integrating into the TETRA terminal part of those elements
              that normally are required for such advanced scenarios.
Teltronic, 2005
                                 Beyond the TETRA Technology
                                          The Terminal


                  Index of contents
                       • The role of the terminal in a system
                       • Improving the terminal capabilities
                       • Examples of customised scenarios




Teltronic, 2005
                                             TETRA + GPS (I)

                         Some ways to improve the classical AVL (Automatic
                        Vehicle Location) solution
                                      GPS information packed
                                      in smaller messages: More                          TETRA SwMI
                                      efficient in use of bandwidth.


                           GPS info                                     SDS
                  GPS                       TETRA MS                   type 4

                                                                                                GPS info       LINE
                                                                                                           DISPATCHER
                        CONTROL       PEI                                                                   STATIONS
                          UNIT
                                                                          
                                             USER                           Methods to decide about the way
                                                                           and the timing to send the GPS
Teltronic, 2005




                     GPS receiver integration in                            information: It also makes the
                    TETRA terminals: Single                                 application more efficient in use of
                    TETRA + GPS devices.                                    system resources.
                                            TETRA + GPS (II)


                                    +         GPS          =                           Single
                                                                                       terminal

                  Standard NMEA 0183 v2.01 RMC message
                                                                                              GPS messages
                                                                                           management strategy
                  SDS-T4  68 or 70 bytes (without/with TL)
                                                                                         • by request from the
                                                                                         AVL control centre,
message format




                   Shortened GPS info (less
                  resolution)                           GPS info (*)
                                                        • Latitude
                                                                                         • by timeout, every
                  SDS-T3  8 bytes                      • Longitude                      programmed time
                                                        • Position age                   intervals,
                                                        • Course
                   Confined area GPS                    • Speed
                                                        • Time
                                                                                         • by distance threshold
                  info
                                                        • Position validity              in a programmable value,
                  SDS-T2  4 bytes                      • GPS receiver status
                                                                                         • automatic sending
                                                                                         during emergency calls.
                 (*) some parameters can appear optionally according to         size
                 the message format
                                                                                                          Teltronic, 2005
                              TETRA + GSM

                   Some reasons to a dual TETRA+GSM terminal
                     The possibility of communication for mobile users that often
                    need to leave the home coverage area increases their level of
                    service anywhere.
                     A single MMI for TETRA and GSM operation makes easier
                    the user interaction.
                     A compact solution reduces complexity in installations and
                    avoids the user managing two separate communication devices.


                                   +                =                 Single
                                                                      terminal

Teltronic, 2005
                                 Beyond the TETRA Technology
                                         The Terminal


                  Index of contents
                       • The role of the terminal in a system
                       • Improving the terminal capabilities
                       • Examples of customised scenarios




Teltronic, 2005
                           Advanced vehicular configuration (I)

            USUAL REQUIREMENTS
              - Half-duplex and duplex voice calls.
              - Status and short data transmission.
              - Remote database and file access.
              - GPS-based vehicle location system.




Teltronic, 2005
                                   Advanced vehicular configuration (II)

            Example: CONFIGURATION STRUCTURE
                  PC vehicular unit


                                                            Loudspeaker



                   MMI front-end                             Hands-free mic

                                                                           Foot
                                                                          switch

                  Fist microspeaker
                                                                   PTT



Teltronic, 2005
                             Motorbike adapted equipment (I)

            USUAL REQUIREMENTS
              - Half-duplex and duplex voice calls.
              - Status and short data transmission.
              - Outdoor operation (dust & water
              protection, high audio, noise cancellation).
              - Simplest user interaction.
              - GPS-based location system.




Teltronic, 2005
                                Motorbike adapted equipment (II)

            Example: CONFIGURATION STRUCTURE




                                                        Helmet audio
                                                          system
                                    PEI & audio




            PTT on handlebars


                                                                Battery
                                Outdoor speaker
Teltronic, 2005
                           Bus on-board equipment (I)

            USUAL REQUIREMENTS
              - Half-duplex and duplex voice calls.
              - Status and short data transmission.
              - Vehicle sensors transmission.
              - MMI integrated on driver’s dashboard.
              - Interaction with passenger information system.
              - GPS-based location system.




Teltronic, 2005
                             Bus on-board equipment (II)

       Example: CONFIGURATION STRUCTURE

                                     TETRA MS                                                engine,
                                                                  Control unit               speed,
                                                                                             doors...
       Bus
     driver’s                                                                     Telemetry
                                                          PEI
      MMI                                                                          sensors

                      Bus driver’s
                     audio system             Audio
- PTT
                                                            control
- Emergency button                          interface                              Billing
- Call request                                                                     system


                                            Passenger           data
                                            information
   Ambience                  Hands-free       system            DISPLAY            Other
    listening                 audio kit
   microphone                                                                    peripherals


         Handset
                                                                                       Teltronic, 2005
                           Railways & underground train equipment (I)

            USUAL REQUIREMENTS
              - Half-duplex and duplex voice calls.
              - Status and short data transmission.
              - Dual MMI console integrated on driver’s dashboards.
              - Interaction with passenger information system.
              - Interaction with on-board train computer.
              - Integration of multiple communication subsystems.




Teltronic, 2005
                              Railways & underground train equipment (II)

            Example: CONFIGURATION STRUCTURE



                               MMI
                             console
                                                   Communications rack
                   Display       Keypad                                              to train’s
                                                       CONTROL MODULE              control system


                                                        VHF        TETRA
              LED        CONTROL                                                   to TETRA antenna
                                       Auxiliary      analog        radio
           indicators    MODULE
                                       buttons         radio         unit
                                                                                   to VHF antenna

                                                                                    to passenger
                                Hands free             AUDIO INTERFACE
                                                                                    audio system
                  Handset      audio system

                                                               to MMI console #n
Teltronic, 2005
            Railways & underground train equipment (III)

 Example: INSTALLATION DETAILS




  MMI     Communications rack                        MMI
console   (TETRA + analog VHF)                     console

                                   Train’s main
                                  control system
                  Overview of
                  communication
                  devices
                                                    Teltronic, 2005
                  Beyond the TETRA Technology




                         Summary


Teltronic, 2005
                             Thinking beyond TETRA

                  TETRA can now be considered as a mature and stable technology. There is
            1     a lot of positive feedbacks from the real world. The TETRA toolbox is ready.

                   The user DOES NOT speak normally in TETRA language. We ALL
            2     (manufacturers, application developers, system integrators, network operators)
                  need to learn their language.



                     toolbox                              USER SATISFACTION
            3                                      …thinking
                    Common                            Beyond the TETRA Technology
                    language


Teltronic, 2005
…we will continue working to try to make your life easier.


      Thank you very much for
          your attention!

       Further information on the
       Web:
                                    www.tetramou.com
                                    www.teltronic.es
                                    www.etsi.org

				
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